CVE-2025-23440 WordPress radSLIDE plugin <= 2.1 - Broken Access Control to Stored Cross-Site Scripting vulnerability

Medium 6.3 Published Updated

Attackers can exploit missing authorization to inject stored XSS payloads, potentially executing arbitrary code in victim browsers.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-23440?

CVE-2025-23440 is a medium-severity missing authorization vulnerability in radicaldesigns radSLIDE, published on 3 Mar 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Missing Authorization vulnerability in radicaldesigns radSLIDE radslide allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects radSLIDE: from n/a through <= 2.1.

Weakness: CWE-862

Which versions are affected by CVE-2025-23440?

How do I fix CVE-2025-23440?

No fix has been published for CVE-2025-23440 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-23440 being exploited?

There is no known exploitation of CVE-2025-23440 in the wild and no public exploit code.

Sources

Also known as GHSA-jjr3-gwjc-24jj.

Is CVE-2025-23440 in your software?

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